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Finding the Fourth Proportional to 655,267.48, 982,548.86 and 385,488.88

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Solution

The fourth proportional to 655,267.48, 982,548.86 and 385,488.88 is: 578,026.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,267.48 : 982,548.86 = 385,488.88 : x
  2. Step 2: Convert to fraction form
    655,267.48/982,548.86 = 385,488.88/x
  3. Step 3: Cross multiply
    655,267.48x = 982,548.86 × 385,488.88
  4. Step 4: Simplify right side
    655,267.48x = 378,761,659,586.68
  5. Step 5: Solve for x
    x = 378,761,659,586.68/655,267.48
  6. Step 6: Final answer
    x = 578,026.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.